Rotary locking collar-button.



G. PONAROUSE.

ROTARY LOCKING COLLAR BUTTON.

APPLICATION FILED .TAN.10, 1907. RENEWED D30. 21, 1908.

960,698. Patented June 7, 1910.

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.4 ATTORNEY.

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UNITED STATES PATENT OFFICE.

GEORGE PONAROUSE, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR, BY MESNEASSIGN- MENTS, T0 0. F. DEGNER, 0F LOS ANGELES, CALIFORNIA.

ROTARY LOCKING COLLAR-BUTTON.

Specification of Letters Patent.

Patented June '7, 1910.

Application filed January 10, 1907, Serial No. 351,723. Renewed December21, 1908. Serial No. 468,589.

To all whom it may concern:

Be it known that I, GEORGE PONAROUSE, a citizen of the United States,residing at San Francisco, in the county of San Francisco and State ofCalifornia, have invented new and useful Improvements in Rotary LockingCollar-Buttons, of which the following is a specification.

This invention relates to improvements in metallic collar, cuff, or studbuttons, and has for its object means whereby the head of the button maybe more conveniently passed through the button hole to secure it inplace or to remove it therefrom.

In the accompanying drawing, Figure 1 is a front view of one form of myimproved button, ready for insertion; Fig. 2 is a side or edge view ofthe same; Fig. 3 is a similar view of the button in its position wheninserted; Fig. 4 is an enlarged section view through the head; Fig. 5 isa similar view at right angles to Fig. 4:; Fig. 6 is broken perspectiveview of the head; Fig. 7 is a broken perspective view of the yoke; Figs.8, 9, 10 are views, similar to Figs. 1, 2, 3, of a modified form of theinvention; Figs. 11 and 12 are views, similar to Figs. 6 and 4:, of saidmodification.

Referring to the drawing, upon the base 1 of the button is formed, orotherwise secured, the yoke 2, having the side arms 3 and the crossbar4, the latter forming a shaft upon which turns the head 5 of thebutton. Said head is hollow and is preferably made of a single sheet ofspring metal, suitably shaped, bent in the middle, at the neck 6, toform two dish-shaped plates, and perma nently set so that the free edgesof the plates meet, or nearly meet. Said head is cut away at its edgesin a diametrial line substantially parallel with the line of bending toformbearings 7 for the cross bar a, and said cross bar 4 is rounded andof comparatively small cross sectional area, as shown at 17, where itpasses through said bearings, but is enlarged in the middle, as shown at1 1, to conform to the hollow form of the head. This middle portion 14of the cross bar is rectangular in cross section, preferably square, andis, by the spring pressure of the head, firmly held between the oppositein terior surfaces of the plates, so that by turning the head upon thecross bar from any one of the positions shown in the figures, the platesof the head are sprung apart. This spring pressure of the head upon thecross bar therefore tends to hold the head firmly in any one of the fourpositions of rest, in the case of the round head shown in Figs. 1 to 7or in any one of three positions, in the case of the elongated headshown in Figs. 8 to 12. Said pressure is rendered more eifective bymaking the plates or section of the head dish-shaped and the cross barenlarged in the center to abut against the flat bottoms of thedish-shaped heads. At the same time, the terminal portions of the crossbar being reduced in cross-sectional area, the bearings 7 can bemaintained comparatively small and thus the button can be formed of aneat and attractive appearance.

I claim:

A rotary locking collar button, comprising a base, a yoke, having sidearms and a cross bar connecting said side arms, said cross bar having amiddle portion rectangular in cross section, and reduced roundedterminal portions, and a hollow head formed of two dishshaped plates ofspring sheet metal permanently secured together at one side with theirfree edges in close proximity to each other, said head being cut away atits edges at diametrically opposite points to form bearings for saidreduced terminal portions of the cross bar, the concavity of thedishshaped plates being such relatively to the enlarged central portionof the cross bar that opposite sides of said enlarged portion can bearsimultaneously against the inner surface of both plates, substantiallyas described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

GEORGE PONAROUSE. Witnesses:

FRANcIs M. WRIGHT, 7 D. B. RICHARDS.

